00800nam a2200205Ia 45000010006000000050017000060070003000230080041000260200018000670400025000850410008001100820019001181000019001372450183001562500013003392600044003523000019003966530161004156530018005764370520240114003559.0ta090119s2008           g     b000 u 903 u  a81-8357-170-0  aCotton College,Assam  a903  a600bCh 455 De  aChopra, J.K. . 0aDeveloppments In The Field Of Science And Technology Communications And Space For UPSC Civil Services and State Public Service Main Examinations /cJ.K.Chopra.hTextual Documents  aIst ed /  aNew Delhi :bUnique Publishers ,c2008.  a308pg ;c27cm.  aTechnology- Developpments In The Field Of Science And Technology Communications And Space For UPSC Civil Services and State Public Service Main Examinations  aG- Technology